Fuel Cut System
- When testing fuel cut system, monitor engine RPM using scan tool. Connect scan tool to data link connector No. 3 for monitoring engine RPM. For connecting of scan tool, see appropriate application under IDLE SPEED & MIXTURE in ADJUSTMENTS
article.
- Remove "V" bank cover located on top of engine for access to fuel injectors. See Figure.
- Start and warm engine to normal operating temperature. Ensure A/C and all accessories are off. Gradually increase engine RPM to at least 3500 RPM.
- Using stethoscope, check for fuel injector operating sound. Ensure when throttle lever is released, fuel injector stops operating momentarily and then resumes operating (fuel return RPM).
- Ensure fuel return RPM is within specification. See FUEL CUT SYSTEM SPECIFICATIONS table. Shut engine off. Remove test equipment.
FUEL CUT SYSTEM SPECIFICATIONS
| Application |
Fuel Return RPM |
| Avalon |
1200 |